The Supreme Court on Thursday upheld a death sentence given to an accused in the 1993 Mumbai serial blasts.

The court also upheld the conviction of Bollywood actor Sanjay Dutt under the Arms Act, but reduced his sentence from six years to five. As he has already spent one and a half years in jail, he will still have to undergo three and a half years in jail. The actor, who is currently out on bail, has been given four weeks to surrender.

Dutt was sentenced to six years jail term for possessing a weapon illegally and had spent 16 months in jail after his arrest in 1993. He was, however, acquitted of the stringent charges under TADA.

The agency had also moved appeals seeking enhancement of sentence of 47 persons who were convicted of lesser offence. CBI had filed 48 appeals of which 20 were against those who were acquitted of all the charges. The CBI hadn't appealed against Dutt's acquittal under TADA.